UN warns of potential mass displacement in Sudan conflict.

The UN refugee agency has warned that more than 800,000 people may flee Sudan due to the ongoing conflict, including Sudanese nationals and existing refugees. The estimate includes approximately 580,000 Sudanese and others who had settled in the country for safety. The UN has said a catastrophic humanitarian situation has already been unfolding since the fighting erupted on April 15. The international body has cut services, though the World Food Programme said it was resuming operations in more secure areas on Monday after staff were killed early in the war.